Deflect
Spell

Abjuration [Force] Level: Duskblade 2, Sorcerer/Wizard 2 Components: V Casting Time: 1 immediate action Range: Personal Target: You Duration: 1 round or until discharged With a word, you evoke a barrier of invisible force. This spell functions like lesser deflect, except that you gain a shield bonus to AC equal to 1/2 your caster level (round down) against the next attack made against the next attack made against you before the end of the next turn.

Player's Handbook II, page 109. Copyright 2006, Wizards of the Coast, Inc.